According to the Online Etymology Dictionary, the word infrastructure has been used in English since 1887 and in French since 1875, originally meaning The installations that form the basis for any operation or system.
Autumn leaves in October (Europe) Autumn leaf color is a phenomenon that affects the normally green leaves of many deciduous trees and shrubs by which they take on, during a few weeks in the autumn season, various shades of red, yellow, purple, black, orange, pink, magenta, blue and brown.
In the spring starting in March/April depending on the weather conditions and whether it's in the North or South. Some trees grow their leaves before others so it's not until May that all trees are in leaf. May is always the greenest month. Spring, March/April.